#include"mystdio.h"
#define MYFILE "log.txt"
#include<string.h>
#include <unistd.h>
int main()
{
  MY_FILE*fp=my_fopen(MYFILE,"w");
  if(fp==NULL)return 1;

  const char*str="hello fwrite";
  int cnt=5;
  //操作文件
  while(cnt)
  {
    char buffer[1024];
    snprintf(buffer,sizeof(buffer),"%s:%d",str,cnt--);
    size_t size=my_fwrite(buffer,strlen(buffer),1,fp);
    sleep(1);
    printf("当前成功写入：%lu个字节\n",size);
  }

  my_fclose(fp);
  return 0;
}
